[jira] [Created] (HADOOP-12693) Many misusage of assertEquals(expected, actual)

["Akihiro Suda (JIRA)" <ji...@apache.org>]

Akihiro Suda created HADOOP-12693:
-------------------------------------

             Summary: Many misusage of assertEquals(expected, actual)
                 Key: HADOOP-12693
                 URL: https://issues.apache.org/jira/browse/HADOOP-12693
             Project: Hadoop Common
          Issue Type: Test
            Reporter: Akihiro Suda
            Priority: Trivial
         Attachments: just-rough-approx.txt

The first arg of {{org.JUnit.Assert.assertEquals()}} should be an {{expected}} value, and the second one should be an {{actual}} value.

{code}
void assertEquals(T expected, T actual);
{code}

http://junit.org/apidocs/org/junit/Assert.html#assertEquals(java.lang.Object, java.lang.Object)

However, there are so many violations in Hadoop, which can make a misleading message like this:
{code}
AssertionError: expected:<actual> but was:<expected>
{code}.

Please refer to {{just-rough-approx.txt}}.




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